What is salinity? Put simply, it refers to the ‘saltiness’ of a given body of water. It is the concentration of dissolved mineral salts therein — and is often measured either directly by its concentration or through electrical conductivity, which it affects. But let’s take a closer look...
Chemical industry waste streams are most often derived from several sources: process discharge; cooling water (recirculated or nonrecirculated); and boiler water blowdown or boiler water conditioning treatments. Pollution is measured by the product of concentration and flow. Before one can submit ...
Water hardnessis quantified by the concentration of calcium and magnesium ions in the water. Minerals consist of atoms, or molecules, that are bound together because they have opposite electric charges. Atoms, or molecules that are charged, are calledions. A mineral consists of a positive ion,...
Hardness in water can indicate high concentrations of calcium, magnesium and other dissolved minerals. In general, this includes 120-180 ppm of iron, calcium and magnesium, or at least 61 milligrams per liter or higher of calcium carbonate concentration. While magnesium and calcium are essential fo...
If 6.00 mL of a 1.248 M solution of NaCl was poured into 12.0 mL of distilled water, what is the concentration of the resulting solution? Dilution: Dilution is a common or usual technique performed in the laboratory that lowers the...
What is the concentration in percent mass/volume of 500 ml water and 4.5 g NaCl when heated? How much water would 29.21 grams of an insoluble sample with a density of 4.35 g/mL displace? What volume must 25 ml of 95% by mass of a solution H2SO4,density 1.80 g/ml, be diluted to...
1.The salt water is made up with 25 grams salt and 100 grams of water.What is the percentage of salt?How many garms of salt in the 200 grams of salt water?2..There are 500 grams salt water,of 3.2% concentration.In order to change it into 8% concentration,How much water does we ...
Evaluating How Hard Water Is According to the USGS, the hardness of water is determined based on the concentration of dissolved multivalent cations: soft water - 0 to 60 mg/L (milligrams per liter) as calcium carbonate moderately hard water - 61 to 120 mg/L ...
If pH is less than seven then the substance is acidic. A pH is the concentration of ${H^ + }$ ions in any aqueous solution.Complete answer:Neutral species or solutions always have a pH equal to $7$ as it is not acidic or basic in nature. When we talk of water it generally has ...
If you changed the plate tectonics just a little, having slightly more or fewer than ten plates, the recycling and CO2 concentration would have been different, and the biosphere would have evolved differently. And this begs another important question.如果你稍微改变一下板块构造，有稍微多于或少于十...